In the distance, Gu Ya and the others remained unmoved. Gu Jiuxuan had asked this of them; he needed overwhelming pressure to push himself.
They were not to intervene unless it became absolutely necessary.
Otherwise, if they joined forces, these Supremes would have been slaughtered long ago.
"Immortal Heavenly Emperor, you really do have plenty of tricks up your sleeve. Even the Flying Immortal Waterfall is in your hands!" Gu Jiuxuan said gravely.
The Reincarnation Lake, Divine Soul Pool, and Flying Immortal Waterfall were three strange substances left behind by Ancient Supremes as they transformed in pursuit of immortality.
Of these, the Flying Immortal Waterfall was the most mysterious. It was said to be a substance left behind collectively by all the Supremes who had fought their way toward the Immortal Domain, gathering into an immortal waterfall that could reach the Immortal Domain's gates.
More than eighty thousand years ago, Great Emperor Wushi and the Immortal Heavenly Emperor had entered the Strange World to confront each other. Even now, their struggle should still have remained undecided.
Yet now, the Immortal Heavenly Emperor could attack across the two worlds, while Great Emperor Wushi had not stopped him. This meant the Immortal Heavenly Emperor had already allied with the Red Dust Immortal of the Strange World.
The Supremes had prepared for the Flying Immortal Waterfall's appearance. As soon as it emerged, they swiftly lunged forward to attack Gu Jiuxuan.
At the same time, thunderous booms rang out from high above the heavens. The lustrous, jade-like hand gripping the Five-Colored Heavenly Saber struggled violently, as though trying to charge through the Flying Immortal Waterfall from the other world.
**"Everyone, attack with everything you have! Victory or defeat hinges on this moment. If we cannot slay the Thunder Emperor, we will be the